our karl penhaul is on this story for us, live for us in chile right now. karl, ebbs plain that part. yes, this is a breakthrough, but this doesn't mean we'll see them out of the hole any time too soon. >> reporter: exactly. let me put it in perspective, tj. first of all, a few moments ago, we talked to members of the rescue team working on the so-called plan b that mae made contact with the miners this morning, about two-and-a-half hours ago now. these two guys that we spoke to are from pennsylvania, who sent a rock drilling company -- they're the ones who have provided the drill bit down there. they say they're exhilarated by having reached the workshop close to where the miners are. they also say they're exhausted. but then from what he have explained -- i want to put it in a little perspective to you. that drill, the plan b drill, started drilling about two weeks ago. and it was going down something like this. there was already a bore hole in place, a four-inch bore hole. that's what a four-inch bore hole looks like, and the new drill was using that as